Check this example. Now please take its reference and correct your code.
<html>
<head>
<meta charset="utf-8" />
<title></title>
</head>
<body>
<input type="text" id="txtDate" readonly="readonly" />
<script type="text/javascript" src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script type="text/javascript" src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<link rel="Stylesheet" type="text/css" href="https://code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css" />
<style type="text/css">
.myweekend span.ui-state-default {
color: red;
}
</style>
<script type="text/javascript">
$(function () {
$("#txtDate").datepicker({
dateFormat: 'yy/mm/dd',
changeMonth: true,
changeYear: true,
showButtonPanel: true,
beforeShowDay: function (date) {
// Sets Weekend Friday and Saturday.
var weekend = date.getDay() == 5 || date.getDay() == 6;
return [!weekend, 'myweekend'];
},
// Sets Weekend position.
firstDay: 6,
closeText: "إغلاق",
prevText: "<السابق",
nextText: "التالي>",
currentText: "اليوم",
monthNames: ["يناير", "فبراير", "مارس", "أبريل", "مايو", "يونيو", "يوليو", "أغسطس", "سبتمبر", "أكتوبر", "نوفمبر", "ديسمبر"],
monthNamesShort: ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12"],
dayNames: ["الأحد", "الاثنين", "الثلاثاء", "الأربعاء", "الخميس", "الجمعة", "السبت"],
dayNamesShort: ["أحد", "اثنين", "ثلاثاء", "أربعاء", "خميس", "جمعة", "سبت"],
dayNamesMin: ["ح", "ن", "ث", "ر", "خ", "ج", "س"],
weekHeader: "أسبوع",
isRTL: false,
showMonthAfterYear: false,
yearSuffix: ""
});
});
</script>
</body>
</html>
